<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>脱敏工具</title>
  <style>
      html, body, .logo {
          margin: 0;
          padding: 0;
          width: 100%;
          height: 100%;
          background-color: rgba(255, 255, 255, 0);
          position: relative;
      }

      .logo img {
          position: absolute;
          top: 50%;
          margin-top: -100px;
          left: 50%;
          margin-left: -100px;

      }
  </style>
</head>
<body>
<div class="logo">
  <img src="/logo.svg" alt="logo">
</div>
<script>
  document.oncontextmenu = function(event) {
    event.preventDefault();
  };
  window.localStorage.setItem("start_time", new Date().getTime().toString());
</script>
</body>
</html>